Receptacle closure



' Jan. 26 1926.

R. A. RUSSELL IECEPTACLE CLOSURE Filed March 26, 192 3 raised Jan.- acme.

UNITED STATES PATENT OFFICE.

' 391mm A. nussnrn, or nrnenwooh, my messy, nssren'on r rnmeon cm c oncomm, nm, or rnrnnsou, mzw JERSEY, A oonronurox or new YORK.

mourners crown.

Application filed larch a, ma arm I. 021,110.

To aZZ whom it may concern.

Be it known that 1, ROBERT A. Russian,

a citizen of the United States, and resident ofltidgewoodfln the county of Ber en and a State of New Jersey, have invente a new and useful Improvement in Receptacle Closures, or which the following is a specification. This invention relates to a receptacle closure and, more particularl to a socalled screw cap for bottles and ]3IS, such for instance, as a catsup bottle.

, An object of'theinvention is to provide such an article which is designed to engage th eads formed on the inside of the neck of receptacle, and which includes effective 1: for-establishing a substantially pert scaling engagement between the closure and the receptacle.

Another object consists in providing such a device which may be 'cheapl and expeditiously manufactured and w ich will be sightly' in appearance.

A further object consists in providing .cer- 86 t ain improvements in the form, construction and arrangement of the everal parts whereby the above named and other objects may be effectively attained. 7

' Receptacle closures which are provided with threads designed to mate with threads formed on the inside of the neck or mouth of the receptacle have usually been provided withrings or washers of cork, rubbercomposition or other yielding material, such rings'or washers being arranged to lie between the top edge of the receptacle neck or zjno'uth and a shoulder or flange formed on the closure, so'that the rings or washers would be compressed upon the receptacle in an axial direction, when the cap or closure was in position thereon. This construction has not proved entirely satisfactory from the point of view-of effecting a complete seal, largely berause therewas nothing comparable to a wedging action in the app1ication of the closure to the receptacle, and also because of the difficulty of acting upon the discs or washers with suflicient force to thoroughly accomplish the desired result. Furthermore, it frequently happens that glass receptacles, such as catsup bottles, have 7 minute cracks or fissures existing at the lip or extreme edge of the neck of the receptacle,

.as a. result of the process of manufacturing the receptacle. These cracks or'fissures comhmonly extend inwardly about one-eighth of an inch, considered in the direction of the height of the receptacle, and permit a certain amount of leakage through the part of the receptacle where the occur. It will be clear that a ring or wasli upon the outer edge of the race tacle will not serve to close these cracks or "ssures and will} not, therefore, accomplish an effective sea I With these well known disadvantages in mind, I have devised the present invention, a practical embodiment of which is repre sented in the accompanying drawings, in which Fig. 1 represents a detail elevation, partly in section, showing my improved closure applied to the neck of a bottle. r

Fig. 2 represents a detail elevation, artly in section, showing the closure just be ore it is applied to the receptacle. 4 Fig. 3 represents a detail section, a modified form of the invention, in which it is shown applied to a hot Water bottle.

- Referring to Figs; 1 and 2, the closure is or which presses only through sheet iron which has been coated with tin and lacquered, and consists of an upper memher 1 and a lower member 2. member is formed of a flat cylinder and can rea ily be drawn from a blank of sheet metal by tion, in a manner well understood'inthe art.

The lowermember 2 of the closure includes a flange 3 which is interlocked with the upper member 1 by means of a folded seam 4. This seam is of acter and may be formed by a dieing operation which is familiar to in this industry.

The member 2 also which is denoted by 5 The u per and is substantially substantiall in the s ape conventional charall those skilled a die opera 1 includes a portion cylindrical in form. This portion 5 inter- 1 venes between the flange 3 and a threaded portion 6 at the lower part of-themeinber '2. The flange 3 has ahead 7 formed therein so as to pro ect downwardly toward the theaded portion of the member 2.'

In manufacturing the member 2, my.

, tacle.

. scribed.

The seam 4 not only serves to firmly unite the members 1 and 2, but it constitutes a beading which improves the appearance .of

the closure and strengthens or reinforces the,

flange 3.

A ring or washer 8, of sultable compressible material, such as rubber compound, is fitted. around the cylindrical portion 5 of the member 2 so as to lie adjacent the under side of the flan e 3 and. head 7. This washer will normal y be held in place by its frictional grip upon the portion 5.

The outside diameter of this portion 5 is made less than theinside diameter of the neck of the receptacle 9 at its mouth, and the outside diameter of the washer 8 is made greater than the diameter of the said portion of the receptacle, so that the said washer may be forced into osition on top of and also within the mout of the recep- The up er inner edge of the receptacle is forms with a shoulder or seat 10, and it will be observed that this shoulder, which is annular in form, has a radius slightly greater than the radius of the head 7. Immediately below the seat 10, the said inner edge or mouth of the rece tacle tapers inwardly toward its threads portion, as indicated at 11.

The result of the foregoing arrangement is that, when the closure is applied to the receptacle by screwing it thereon, the washer 8 enters for some distance inside the mouth of the receptacle so as to be clamped between the said tapered portion 11 of the receptacle and the cylindrical ortion 5 of the member 2 of the closure. nother part of i the washer 8 is firmly clamped between the head 7 and shoulder 10, while the outer part of the washer rests upon the top face of the neck of the receptacle and is clamped thereupon by the flange 3. This condition of the washer is clearly shown in Fig. 1.

Thus the washer 8 not only bears upon the, portions of the receptacle just mentioned in order effectively to seal any cracks or fissures and to cover any irregularities in the material of which the receptacle is composed, but the said washer isforced into place by a wedging action similar to that which occurs when an ordinary cork is forced'into the neck of a bottle, and it is also clamped between two projections, to wit: the head 7 and shoulder 10, at an inin the present instance as being crimped up around the eriphery of the member 2 of the closure fiir the purpose of holding it in place upon the latter. It may be desirable also to apply adhesive between the disc 13 and member 2'as an additional means of uniting these two parts, or the adhesive might be em loyed without crimping the edge of the p the member 2. This disc may also serve to protect the closure from the action of the contents of the receptacle.

It will be seen that, as the closure is screwed down into the sealing engagement above described, the bottom of'the member- 2 will firmly compress the disc 13 upon the shoulder 12, at the same time that the flange 3 and head 7 are exerting pressure upon the washer 8, so that a very tight engagement is effected at the shoulder 12 as well as at the other points described, and there is set up a sealing contact between the closure and receptacle which has three distinct points, one on top of the receptacle, another just within the mouth of the receptacle, and the third at the shoulder 12.

For convenience in manual operation of the closure, it is preferably provided with a knurling, which can be done at the same time that the portion 6 is being threaded, as is well known by operatives in this industry.

Referring to the modified form shown 1n Fig. 3, the neck of a-hot water bottle is denoted by 14, and it is provided with the usualscrew threaded member 15 which is composed of sheet metal and preferably secured inthe neck 14 by a vulcanizing process well understood in. the art. The bottom of this screw threaded member 15 is open and provided with a peripheral flange 16 which projects laterally inwardly from the wall of the neck 14; while the top ofthe saidmember15 has a folded flange 17 that projectslaterally outwardly and rests upon a shoulder in the neck 14.

The closure consists of an upper member 18 and a lower member 19 that are united by a folded seam. which seam itself constitutes an outwardlyprojecting lateral flange 20 on the closure, and the lower part of which is provided with ahead 21.

isc around the periphery of In manufacturing the member 19,. it mav be drawn by a suitable die operation with the flange projecting straight out laterally.

. In this same operation, the head 21 ma be formed. After the member 19 has n thus formed, it is suitably threaded by passing it between the well known threading rollers. The member 18 is produced by stamping it from sheet metal, and "it may 7 also is a well understood die operation.

The member 19 has a cylindrical portion 23 intervening between the flange and its ill threaded portion; and a ring or washer 24, of'suitable comipres'sible material, such as rubber compound, is fitted around the cylindrical portion 23 so as to lie adjacent the under side of the flange 20 and-bead 21.

A disc or wafer 25 composed'of suitable material, such as wax paper, is fitted to the bottom of the member 19, and crimped around the periphery thereof for the purpose of holding the same in position. An adhesive may be used for this purpose, either with or without the crimping of the disc 25 around the periphery of the member 19,'as. mentioned in connection with the preferred form.

v The operation of thisenibodiment of the invention is substantially the same as that of the predeired' form, since it will be seen that, as the closure is screwed into the neck 14 of the water bottle, the washer 24 will be pressed down upon the top of the-flan e l? the flange 20, and the said washer W1 1 also be force. in between the inner end of flange l7 and the threaded portion of the member 19 by the head 21; while, the

bottom ofthe member 19 will simultaneously compress the disc 25' upon the flange 16; thus forming a triple seal similar to that set forth in describing the preferred form shown in Figs. 1 and 2. v

It will. clear that the members 1 and 2 of the preferred form, and the members 18' and 19 of the modified form may be made in ways other than those'hereinabove described, and that it may be desirable to subject the closures to an additional coating or recoating of some non-corrosive material, such as tin or lacquer, after they have been formed; and I desire it to be understood that various changes may be resorted to in the material, form, construction,.arrangement and method of forming the various parts without departing from the spirit and scope of my inventionpand that I do notintend to be limited to the details herein shown and described, except as they may be included inthe claims.

What I" claim is:

1. In combination,'a receptacle having in terior closure engaging means, a shoulder located below said means, a shoulder located above said means, and a surface surrounding and above said last named shoulder, together with a sheet metal closure comprising an upper member, a lower member prod with a laterally extending flange, a seam at the perimeter of said flange uniting said members, said lower member being adapted to cooperate with the shoulder 1o, cated below the closure engaging means, and

said flange beingadapted to cooperate with v' the shoulder located above the closure engaging means and' with the surface surrounding said last named shoulder.

2. In combination; a receptacle having interior closure en aging means, a shoulder located below sai means, a shoulder located above said means, and a surface surrounding and above said last named shoulder, together with a sheet metal closure comprising, an

upper member, a lower member provided with a laterally extending flange, a seam atv the erlmeter of said flange uniting said mem ers, a downwardly-projecting bead on said flange, said lower member being adapt ed to cooperate with the shoulder located below the closure engaging means, said head being adapted to cooperate with the shoulder located above said closure engaging means, and said flange being adapted to cooperate with the surface surrounding said last named shoulder.

3. In combination, a receptacle havin interior closure engaging means, a shou der located below said means, a shoulder located above said means, and a surface surroundin and above said last named shoulder, sai shoulders being substantially'parallel with each other and the last named shoulder being "greater in diameter than the other, together with a sheet metal closure comprising, an upper member, a lower member provided with a laterally extending flange, a seam at the perimeter of said flange uniting said members, said lower member being adapted to cooperate with the shoulder located below the closure engaging means, and said flange being adapted to cooperate with the shoulder located above the closure engaging means and with the surface surrounding said last named shoulder.

4. In combination, a receptacle havin interior closure en aging means, a shou der located bel'owsai means, a shoulder located above said means, and a surface surroundin and above said last named shoulder, sai shoulders being substantially parallel with each other and the last named. shoulder beinggreater in diameter than the other, to-

ion

gather with a sheet metal closure comprism an upper member, a lower member provi ed with a laterally extending flange, a seam at the perimeter of said flange uniting said members, a downwardly projecting head on said. flange, said lower member being adapted to cooperate with the shoulder located below the closure engaging means, said bead being adapted to cooperate with the shoulder located above said closure engaging nieans, and said flange being ada ted to cooperate with the surface surroun ing said last named shoulder.

5. In combination, a receptacle having interior closure engaging means, a shoulder comprising, an upper member, a lower member provided with a laterally extending flange, a seam at the perimeter of said flange uniting said members, said lower member being adapted to cooperate'with the shoul- 'der located below the closure engaging means, and said flange being adapted to cooperate with the shoulder located above the closure engaging means and with the surface surrounding said last named Shoulder.

6. In combination, a receptacle having interior closure engaging means, a shoulder located below said means, ashoulder located above said means, and a surface surrounding and above said last named shoulder, said shoulders "and said surface being substantially parallel with each other, the last named shoulder being greater in diameter than theother shoulder and the surface being greater in diameter than either shoulder, together with a sheet metal closure comprising, an upper member, a lower member provided with a laterally extending flange, a

seam at the perimeter of said flange umting said members, a downwardly pro'ecting bead on said flange, said lower mem er being adapted to cooperate with the shoulder located below the closure engaging means, said head being adapted to cooperate with the shoulder located above said closure engaging means, and said flange being adapted to cooperate with the surface surrounding said last named shoulder. v

In testimony, that I claim the foregoing as my i -zvention I have signed my name this 23rd day or March 1923.

ROBERT A. RUSSELL. 

